If you’re looking for a way to seal air-dry clay, you’ve come to the right place. This tutorial will show how easy it is to seal your creations with this incredible material. You’ll also learn why it’s important and how easy it is!

What Is Air Dry Clay?

Air-dry clay has been fired in a kiln but is not completely baked. It can be painted with acrylics, used for jewelry making and sculpture, or even decorating your home!

This is an excellent project for anyone who wants to get into ceramics but doesn’t have the money or space for all the equipment. It’s also fun to make something beautiful out of discarded materials!

Why Should You Seal Air-dry Clay?

  • It Protects the clay from dust.
  • It prevents the clay from drying out.
  • It lasts longer than regular clay, so you can use it for various projects (like making pottery or ceramic art).

How To Seal Air-dry Clay?

You will need the following:

  • A sealer that is non-toxic and water-based. We recommend using a product like Flex Seal by Behr, which can be found at home improvement stores or online.
  • A paintbrush or roller to apply the sealer to your walls and cabinets in thin coats, allowing each layer to dry before adding more color or texture (this helps prevent cracking). Let each coat completely dry before applying another one—you may need two coats depending on how thick your finished product will be!

Painting Air Dry Clay

To apply the sealer, first, paint your clay with acrylic paints. You can use any paint or pigment you like and not worry about what it’s made of.

Next, let the clay dry for about 24 hours before sealing it with a sealer. The last step is to cover the exposed areas with another coat of paint so that none of these surfaces are visible after you’ve sealed them!

Your clay will be sealed and ready to use when you’re finished!

Can You Make An Air-dried Clay Waterproof?

It is possible to make air-dry clay waterproof. The clay used in air dry clays is made up of a binder, which holds the clay together and makes it waterproof. The binder also acts as a sealer, preventing moisture from entering your project during drying and ensuring there are no leaks once you’ve finished working on it. So if you want your project to stay dry for longer, this technique will help!


I hope this article has helped you understand the science behind air dry clay and that you feel confident enough to use it. If you have any questions or concerns about using air-dry clay, please don’t hesitate to reach out in the comments below!


Yes, air dry clay can be waterproofed. All you have to do is apply a coat of proper sealant. Our personal preference is to employ epoxy resin or polyurethane varnishes. Although epoxy sealants are more lasting, both are available in watertight compositions and are pretty simple to apply.

No, air-dry clay does not need to be sealed before painting. Most colors, including acrylic paint, will stick to air-dry clay if thoroughly cured before painting. Many sealants even permit the use of paints in between layers of sealer. This enables the creation of very unique and striking effects.

Acrylic paint will seal air-dried clay to a limited extent. Although most acrylic paints are water-resistant, they will not waterproof your air-dry clay pots. Air-dry clay, unlike polymer clay, is water soluble. To be waterproof, it must be entirely covered with a waterproof coating such as epoxy or polyurethane. The majority of acrylic paints, particularly outdoor acrylics, are water-resistant rather than waterproof.

Water is soluble in air-dry clay, whether it is dried or in a workable form. In other words, it will dissolve in water. Even humid environments might degrade them over time. Air-dried clay should be covered with a water-resistant sealer if it is to have any permanent. This can range from totally impermeable epoxy coatings to watered-down PVA glue (white glue)

Air-dry clay is not food safe and should only be used for decoration. Some food-safe sealants are available for air-dry clay pots, but even if these are used, we will not advocate using air-dry clay for eating or drinking.

Yes, you may sculpt with air-dry clay while adding water to it. You may add small quantities of water with a sponge or your fingertips, or dip your tools in water, much like you would with ceramic clays. This softens the clay and makes it simpler to form. A small amount of air-dry clay can also be dissolved in water and used as an adhesive for connecting extra pieces to work or as a crack filler.

You Might Also Like Reading

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The Best Pottery Wheel For Adults & Kids

How To Make Air Dry Clay Waterproof?

Painting Air Dry Clay


Feature Image Credit: Photo by Earl Wilcox on Unsplash


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